The first thing an honest dealer should tell you about aquamarine is that heat is routinely used to take out green tones and leave a cleaner blue. It is normal in the trade and not a flaw, but you have every right to ask, and we are happy to answer.

This exact stone

This is a natural aquamarine of 3.2 carats from Afghanistan, called beruj in Urdu, in a sea-blue colour. Whether this particular stone has been heated is something we will tell you on WhatsApp, along with anything else we know; quote AG-000262. An independent lab test is your choice.

At 7.5 to 8 on the Mohs scale it is hard enough for a ring worn regularly, as long as you avoid knocking the edges. For wider context, see the aquamarine category.

If it is not what you expected when you open the parcel, you have seven days from delivery to return it for a refund or exchange, as long as it is unused and in its original packaging.

Pay the rider only after checking the stone; Karachi deliveries usually take 1–2 working days and other cities 2–4. Read our aquamarine guide before you choose.

This particular stone

This listing is one natural aquamarine, known in Urdu as Beruj, with a weight of 3.2 Carat. Its price is Rs. 4,130 — roughly Rs. 1,291 for each carat. Origin: Afghanistan. Treatment: treatment not tested. Quote reference AG-000262 when you message us about it. The photographs show this exact stone, so what arrives at your door is the piece you chose on screen.

Between two and six carats is the range most people choose for a gents' ring or a noticeable pendant. Here colour drives the price more than size does, which is why two stones of near-identical weight can be priced very differently.

On the Mohs scale aquamarine rates 7.5 to 8. It handles daily wear, but a hard knock can still nick an exposed corner, so a protective setting is a sensible choice. Clean it with warm soapy water and a soft brush, and keep it away from abrasive cleaners and high heat.

Whoever you buy aquamarine from, make sure of three things: the stone is natural rather than lab-grown, glass or glass-filled; any treatment is stated in writing; and the weight quoted is the weight of the finished stone. We check every aquamarine for those three points before it is listed, and because you pay on delivery you can look at the stone — or have it tested — before any money changes hands.

We sell natural stones only and inspect each one before it is listed. Treatment for this stone: Treatment not tested. No lab report yet; independent testing welcome. As general background (not a statement about this stone): Aquamarine is commonly heated to remove green tones and leave a purer blue. Ask us on WhatsApp and we will tell you what we know about this exact stone; independent lab testing is available on request.

A certificate of authenticity is available on request for this stone, and independent laboratory testing can be arranged. Because you pay on delivery, you can also take the stone to a lab of your choice within the 7-day return window. Read more on our authenticity page.